Fire Science
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Bare steel constructions are often integrated in modern buildings. Intumescent coatings are widely used to protect the steel from heating up too quickly in a case of fire. As the functionality of intumescent coatings decreases with the impact of weathering processes, it is important to understand the mechanisms of material degradation to maintain long durability. The weathering-induced degradation behavior of a water-borne intumescent coating was examined, and the weakest points of the formulation were identified by a systematic approach. Resulting from this investigation, adjustments to the formula were made, leading to improved weathering resistance.